.scale-on-active {
    &:active {
        transform: scale(.94);
    }
}

.hidden-img {
    transform: scale(0);
    width: 0;
    height: 0;
    visibility: hidden;
    display: none;
}

//公共
.box {
    display: -webkit-box;
    display: -moz-box;
    /* 老版本 - 适配iOS 6-, Safari 3.1-6 */
    display: -webkit-flex;
    /* 新版本 - 适配Chrome */
    display: flex;
}

.box-pack-center {
    -webkit-box-justify-content: center;
    -moz-align-justify-content: center;
    -webkit-align-justify-content: center;
    justify-content: center;
}

.box-align-center {
    -webkit-box-align: center;
    -moz-align-items: center;
    -webkit-align-items: center;
    align-items: center;
}